I've found that things like housework and exercising regularly have to be built into a routine for them to work. In terms of GTD, I'd have a project "Set up housekeeping routine". This is done when the routine is implemented and on cruise control. Regular reviews are necessary to keep the routine intact. You might find after a while that you're taking on too much work yourself and need to delegate more. Or perhaps there's only so much housekeeping you can do in an area without decluttering and purging.
I'm on a mission to do just that so I can regularly and easily clean my house. Clutter becomes an insurmountable obstacle that will derail even the best intentioned housekeeping routine.